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75421354 = 244578461
BaseRepresentation
bin1000111111011…
…01011010101010
312020220210122111
410133231122222
5123301440404
611252312534
71604033221
oct437553252
9166823574
1075421354
11396341a8
122131274a
1312819328
14a033cb8
15694c104
hex47ed6aa

75421354 has 8 divisors (see below), whose sum is σ = 113170788. Its totient is φ = 37697760.

The previous prime is 75421349. The next prime is 75421361. The reversal of 75421354 is 45312457.

It can be written as a sum of positive squares in 2 ways, for example, as 69305625 + 6115729 = 8325^2 + 2473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4684 + ... + 13144.

Almost surely, 275421354 is an apocalyptic number.

75421354 is a deficient number, since it is larger than the sum of its proper divisors (37749434).

75421354 is a wasteful number, since it uses less digits than its factorization.

75421354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12920.

The product of its digits is 16800, while the sum is 31.

The square root of 75421354 is about 8684.5468505847. The cubic root of 75421354 is about 422.5045999289.

The spelling of 75421354 in words is "seventy-five million, four hundred twenty-one thousand, three hundred fifty-four".

Divisors: 1 2 4457 8461 8914 16922 37710677 75421354